If you’re in the market for a cleaner, greener office space or work studio, you have to check out ecospace. In collaboration with London-based architectural practice Idris-Perrineau Town, ecospace has designed a small, green-roofed studio that is built completely from sustainable materials…

Or so they say.

You don’t need to look far to start questioning the green-ness of these tiny abodes; the whole exterior is clad in “sustainable red cedar.” (Perhaps it’s not so rare in England as it is in the U.S.) The inside walls are made of birch, another not-so-replaceable species — and with other more sustainable wall coverings available, I’m not sure why ecospace is using trees. Finally, the floor inside is made of rubber, which will last a long time, but relies on petroleum at some point during its creation.